Patents by Inventor Vaughan C. Chambers, Jr.

Vaughan C. Chambers, Jr. has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Photoimaging process
    Patent number: 4429027
    Abstract: A simplified method for photoimaging a photosensitive layer produces in situ a radiation-opaque photomask on the photosensitive layer or on a cover sheet of the layer. A nonvisible latent image is toned and the toner is transferred to a layer or cover sheet to form an actinic radiation-opaque photomask.
    Type: Grant
    Filed: May 21, 1981
    Date of Patent: January 31, 1984
    Assignee: E. I. Du Pont de Nemours & Co.
    Inventors: Vaughan C. Chambers, Jr., Joseph E. Gervay